Undercloud install/upgrade failed due to glance-manage db_sync failure

Issue

• openstack undercloud install or openstack undercloud upgrade fails with the following error

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Undercloud upgrade failed.

Reason: os-refresh-config failed. See log for details.

See the previous output for details about what went wrong.  The full install
log can be found at /home/stack/.instack/install-undercloud.log.

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• In the console output, we see that glance-manage db_sunc returned 1

2019-02-01 12:34:56:012 INFO: Error: glance-manage  db_sync returned 1 instead of one of [0]